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891.
经济持续发展和土地集约利用是新型城镇化战略关注的重要问题,而长期以来对于小城镇发展道路的诸多争辩和关切也集中在发展规模、用地效率等。采用多因素综合评价法测度江苏省109个抽样乡镇的经济发展水平和土地集约利用水平,并借助相关分析等探讨二者关联特征。研究发现:(1)镇域经济发展水平与土地集约利用水平显著正相关(P<0.01)。人口规模增加对经济发展水平和土地集约利用水平提升的“指数增长”效应要明显优于建成区面积扩张带来的“线性增长”效应,在人口规模达到5万~6万后镇域经济发展水平和土地集约利用水平明显提升。(2)镇域经济发展水平与土地集约利用水平的关联度呈现差异化特征。苏南地区显著高于苏中和苏北,人口规模越大两者的关联度越高,全国重点镇的关联度高于非重点镇和乡,三产均衡发展型和工业主导型乡镇的关联度高,而农业主导型乡镇的关联度较低。上述研究发现对于镇域社会经济健康发展的启示在于要统筹布局、重点推进、提升活力,着力增强人口吸引力,达到人口门槛规模,进而促进三产融合与集约集聚发展。  相似文献   
892.
自然资源资产负债表编制中生态损益核算   总被引:4,自引:2,他引:2  
生态损益核算是自然资源资产负债表的重要部分,是对自然资源分类核算的扩展和补充。本文梳理生态损益核算的总体思路,系统总结生态损益核算技术,以围场县为例进行实证,遵循先实物后价值的核算原则,选择森林、草地、湿地生态系统,按不同的生态服务指标进行实物量和价值量的核算,并在已有的核算基础上计算各类型生态系统的实物量参数和价值量参数,以便根据面积统计数据进行快速简洁的核算比较。研究发现:围场县2015年生态系统服务功能价值量总值为338.99亿,与2013年相比增加了0.04%。生态系统服务功能价值量从大到小依次为草地、森林、湿地,核算期间森林和草地生态系统价值量分别下降0.06%和0.22%,湿地生态系统价值量增加4.47%。研究成果有助于全面理解和量化自然资源数量变化和质量变化带来的生态效应,并为自然资源资产负债表中的负债核算提供数据基础。  相似文献   
893.
894.
基于长三角区域社会、经济、环保一体化高质量发展要求,全面调研"三省一市"(上海、江苏、浙江、安徽)2011—2017年环境经济政策出台情况,并开展评估分析。结果显示:长三角区域环境经济政策整体呈现良好发展态势,尤其在财政奖补方面占绝对优势,但各省市差异较为明显,且区域层面联动政策相对欠缺。在此基础上,结合长三角区域环境质量改善目标及污染防治协作深化需求,建议在环保基金、生态补偿、排污权交易、环境信用体系等领域率先开展区域联动试点,并从机制、法律、技术等层面给予保障,探索形成区域环境经济政策共商、共享、共赢模式。  相似文献   
895.
In this study, we investigate, through two study samples, whether relationships between social leader–member exchange (SLMX) and economic leader–member exchange (ELMX) relationships and outcomes differ depending on the followers' level of other orientation or the extent to which they are concerned for the welfare of others. We propose that followers with higher other orientation would respond less negatively to higher levels of ELMX and more positively to higher levels of SLMX because they are less likely to engage in behaviors based on rational and self‐interested calculations. In Study 1 (N = 200), we found that higher other orientation mitigated ELMX's negative relations with affective commitment and turnover intention. In Study 2 (N = 4,518), we both replicated the findings from Study 1 and also found that higher other orientation mitigated ELMX's negative relations with work effort. We also uncovered a weaker positive relationship between SLMX and organizational citizenship behavior for followers with higher other orientation.  相似文献   
896.
对陇东地区进行社会经济条件调查,得出陇东地区内有庆阳市和平凉市两大城市,以2013年统计数据为准,庆阳市和平凉市平均人口密度分别为97人/平方千米和219人/平方千米,均高于甘肃省平均人口密度(61人/平方千米);陇东地区生产总值达947.29亿元,占甘肃省生产总值的15.11%,属经济发达地区;且陇东地区含有丰富的煤炭和石油资源;可以得知陇东地区区域人口密度高,经济发达,资源丰富。从社会经济条件分析,陇东地区不适合作为中国高放废物粘土岩地质处置库预选区。  相似文献   
897.
Evidence on income as a crucial driver of renewable energy consumption in Africa is mixed. But hydropower accounts for over 90% of renewable energy in sub-Sahara Africa alone. Yet, empirical evidence suggests that hydropower may not be as environmentally sustainable as believed and, as a legacy source of energy in Africa, may not accurately reflect attitudes on renewable energy motivated by environmental concerns. This paper examines the role played by economic performance in the rising sustainable energy consumption in Africa, focusing on the renewable energy sources that are compatible with sustainable development. The difference generalized method of moments, fully modified ordinary least squares, and dynamic ordinary least squares are employed to estimate the statistical significance of income, environmental sustainability proxy, and prices as important drivers of sustainable energy consumption in a panel of 10 African countries for the period 2000–2011—a time frame characterized by a rapid rise in renewables as a priority in environmental policy. With timing and measurement considerations on sources of renewables, results indicate that in contrast to recent literature, the rise in sustainable energy consumption in Africa is strongly driven by rising domestic incomes. In line with literature, however, there is a generally positive, albeit statistically insignificant relationship between sustainable energy consumption and levels of carbon emissions. Oil prices in real terms also correlate with sustainable energy consumption. Available data also show that countries with low energy security also coincidentally tend to have high small hydropower capacity, providing potential for sustainably reducing energy insecurity.  相似文献   
898.
Solar energy is one of the major sources of alternative and green energies that humanity need now and will continue to need in the future. There are now a large number of R&D activities on solar power generation facilities and equipment around the world. Located in a subtropical region, Taiwan is rich in solar energy resources; therefore, how to effectively use and store solar energy is a research topic of great interest to Taiwan. The main purpose of this study explores the economic benefits of building-integrated photovoltaics (BIPV) facilities and equipment by analyzing the net present values (NPV) and payback period of the BIPV façade of a shopping mall in Taiwan over its lifecycle. The NPV and payback period analysis results both indicate that the BIPV façade in the case study reaches its breakeven point within 10 years of payback period and 16 years of NPV during a life cycle of 20 years. By showing BIPV investments can bring an acceptable range of benefits profits, this study hopes to provide references for promoting the photovoltaic (PV) industry.  相似文献   
899.
Sustainable urban water infrastructure planning is vital for all cities in developing countries, where rapid urbanization has exacerbated the increasingly burdened environment. Water sustainability is a prerequisite for economic growth, social equity, and living quality in urban areas. This paper documents the current challenges and summarizes the solutions adopted in water infrastructure planning and management. Then, case studies of how multilateral financial institutions have promoted sustainable water infrastructure planning through economic appraisal and the novel approaches adopted for sustainable water infrastructure planning and asset management, are presented for the three cities of Jiaozhou, Cixi, and Fangchenggang. Conclusions are made based on the comparison and analysis of the experiences drawn from the case studies of how economic analysis could help promote sustainable water infrastructure planning and management. It is illustrated that economic analysis that considers ecosystem services supply should be employed more in water infrastructure planning, operation, and management in China.  相似文献   
900.
Despite the popularity of local economic development (LED) as a job creation and economic growth strategy in South Africa, many LED projects have not proved to be sustainable in the long-run, especially where human systems interact with biological ones. This article examines the relationship between sustainability and LED within the context of the emerging honeybush tea industry in the Eastern Cape. Data were gathered from provincial as well as local government policy documents and reports, and via key informant interviews. The data were analysed using Connelly’s [(2007). Mapping sustainable development as a contested concept. Local Environment, 12 (3), 259–278] three pronged approach to sustainable development as a lens through which to view the local industry. Findings showed that the industry offers many opportunities for development, including job creation in poorer, rural households; sustainable wild harvesting using a permit system; commercial cultivation; potential to develop social capital; potential for community-based LED; and product diversification. However, there are also corresponding challenges: There is currently no reliable data on the maximum sustainable yield, which is needed to guide quota allocations for entrepreneurial harvesters harvesting from wild stocks; possible biodiversity loss; and enforcing the permit scheme is proving difficult in remote rural areas.  相似文献   
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